The Wacker Neuson Cooling Water Hose is a genuine OEM component designed for the RD40-130 and RD45-140 series tandem rollers. Sourced directly from Wacker Neuson, this hose matches the original part in material composition, diameter, and routing geometry — ensuring a drop-in connection with no guesswork. It is confirmed compatible across all variants in the RD40-130 and RD45-140 families, including the C and O model configurations. When your existing hose shows signs of cracking, swelling, or leaking, replacing it with the correct OEM part keeps the engine cooling circuit operating as engineered.
Key Features
- OEM-Grade Coolant Hose Construction — Manufactured to Wacker Neuson's original material and wall-thickness specifications, maintaining pressure integrity and heat resistance throughout the cooling circuit.
- Direct-Fit Routing and Connections — Matches the original hose's length, bend profile, and end fittings so it seats correctly between cooling system ports without trimming or adapting.
- Broad RD-Series Compatibility — Fits RD40-130, RD40-130 C, RD40-130 O, RD45-140, RD45-140 C, and RD45-140 O tandem rollers, covering all standard, combination, and oscillation variants.
- Protects Engine from Overheating — A sound cooling water hose maintains consistent coolant flow to prevent heat buildup; a failed or leaking hose can cause rapid engine temperature spikes and unplanned shutdowns on the compaction site.
- Verified Genuine OEM Part — Part number 5100024921 is an authentic Wacker Neuson replacement, providing confidence that the component meets the same standards as the one originally installed at the factory.
The cooling water hose carries engine coolant between key components in the machine's liquid cooling system, such as the engine block, radiator, and associated heat exchangers. By maintaining a sealed, unobstructed flow path, it allows the engine to shed heat effectively and stay within its safe operating temperature range. When the hose deteriorates — through cracking, softening, or collar leaks — coolant loss follows quickly, putting the engine at risk of overheating and forcing an immediate work stoppage.
Part Details
| Part Number | 5100024921 |
|---|---|
| Brand | Wacker Neuson |
| Part Type | Genuine OEM |
| Description | Cooling Water Hose |
Compatibility & Fitment
| Name | Model | Machine Number |
|---|---|---|
| RD40-130 Tandem Roller | RD40-130 US | 5100021801 |
| RD45-140 Tandem Roller | RD45-140 US | 5100021802 |
| RD40-130 C Tandem Roller | RD40-130C US | 5100021803 |
| RD45-140 C Tandem Roller | RD45-140C US | 5100021804 |
| RD40-130 O Tandem Roller | RD40-130O US | 5100021805 |
| RD45-140 O Tandem Roller | RD45-140O US | 5100021806 |
Verify Before You Order
Fitment is machine-number and revision-specific; always confirm your model and serial number against the fitment list.
Why Buy From DHS Equipment
Every part is verified against the manufacturer's part number before it ships, so what you order is what arrives. We carry parts from leading OEM brands and our own DHS Quality Parts line of professional aftermarket components. Need help finding the right part? Our team is available to confirm compatibility whenever you need it. Orders are processed fast to keep your jobs on track. We don't just sell parts. We keep you jobsite ready.
Questions? Contact our team at [email protected] or 866-611-9369 — DHS Equipment is here to help you maintain peak performance.
